Currently, it supports the three leading apps including WhatsApp, Facebook Messenger and Telegram which I think should suffice most users' needs.
The messaging sidebar is built right into the browser interface and once users log in to their accounts, messaging becomes far more accessible.
Inspired by Neon, we made a decision to bring those seamless transitions between chat and discoveries to the Opera browser.
Opera wants to make your browser social. "Social messengers completely changed our lives, by allowing us to work, discover new things and communicate at the same time", he explains. "That's why we bring you Opera Reborn, the first browser to allow messengers to reside within your browser, without the need to install any extensions or apps", said Krystian Kolondra, Opera's head of browser products, in a blog post.
The messaging panel can either overlay the current webpage you're looking at or be pinned to the browser. Its key feature is the ability to display messenger apps within its browser window.
The lion's share of browser coverage around here seems to go to Google Chrome and Microsoft Edge, with a hyena's helping left over for Mozilla Firefox.
Lastly, Opera Reborn also comes with some security and performance improvements created to enhance the overall experience.
If you're entering a password or other sensitive details, such as a credit card number, Reborn will also warn you that the "login is not secure" if the web page you're on isn't HTTPS.